Keep tabs on who is coming and going in your office or at home with the AC Adapter Hidden Camera. The AC Adapter Hidden Camera was created by Brickhouse Security and is perhaps the most ingenious spy camera I have ever come across.
I have seen many, many types of spy cameras hidden in everything from crucifixes to lighters. None of those is nearly as sneaky as the AC Adapter Hidden Camera. This camera plugs into your wall and starts filming the moment it detects motion. The camera's video quality clocks in at 720 x 480 with 30fps. The included memory card can hold up to 4GB of data, although it can be upgraded to 32GB. Check out the demo video here to see this camera in all of its wall-mounted glory. The mystery of who has been leaving trash on my desk may finally be solved.